Radio Frequency Testing

In the context of the Internet of Everything, whether it is an embedded Wi-Fi/Bluetooth module, a 4G/5G communication module, or a low-power NB-IoT and LoRa module, as long as it is a radio sold and used within the territory of the People's Republic of China Transmitting equipment must go through radio model approval procedures. SRRC certification (Radio Type Approval Certification) is not only a mandatory requirement of laws and regulations, but also a technical cornerstone to ensure the harmonious coexistence of different radio services.

1. Legal background and importance of wireless module SRRC certification

According to the Regulations of the People's Republic of China on Radio Administration, all radio transmitting equipment sold or imported into the PRC must obtain the Radio Transmitting Equipment Model Approval Certificate issued by the State Radio Administration.

1. Compulsory approval system All module products with wireless transmission functions must pass SRRC certification and obtain a unique CMIIT ID (approval code) before being officially put on the market. For modules that have not obtained the approval certificate, their supporting complete products will not be removed from the mainstream e-commerce platforms, and will face administrative penalties from regulatory authorities.

2. Advantages of modular certification For manufacturers, if a complete non-independently operated wireless module that has passed SRRC certification is adopted, the testing process can be greatly simplified when applying for the whole machine, the research and development cost can be reduced, and the market cycle of the whole machine can be shortened.

2. Core technical requirements for wireless modules to apply for SRRC certification

For wireless modules with different frequency bands and communication protocols, the detection emphasis in the authentication process is different.

First, the core test index laboratory will conduct rigorous tests on key radio frequency parameters such as frequency range, transmission power, occupied bandwidth, frequency tolerance, and spurious emission of the module according to national standards. For example, for a Wi-Fi 6 module, its spectral mask and power spectral density in the 2.4 GHz and 5GHz frequency bands must meet the latest specification requirements.

Second, module certification classification The type approval of wireless modules is usually divided into "complete modules" and "restricted modules". The complete module needs to have a complete shield, antenna interface and power supply voltage stabilizing circuit. GTG Guangce Group recommends that enterprises clarify the modular application plan in the design stage to ensure that the module can still maintain the validity of approval when integrated into different host devices.

3. SRRC certification processing process, cycle and cost analysis

Understanding the actual operation process of SRRC certification for wireless module products will help enterprises reasonably estimate the project progress.

1. Basic process of certification: First, the applicant submits application materials on the China Radio Approval Management Platform, including business license, technical specifications and circuit diagram; Then enter the sample delivery and testing stage, and conduct radio frequency parameter testing in a qualified laboratory; After passing the test, the report will be submitted to the State Radio Administration for technical review; An electronic certificate will be issued after passing the review.

2. Explanation of cycle and cost factors How much does SRRC certification cost or how much does SRRC certification cost is mainly determined by the standard and frequency band supported by the product. For example, there is a significant difference in testing workload and cost between a module with a single Wi-Fi function and a module with integrated 5G full Netcom function. Typically, the official audit cycle plus testing cycle of SRRC certification is around 4 to 6 weeks.

4. Why choose GTG Guangce Group as a compliance partner

When choosing an SRRC certification agency or technical partner, the technical strength and project management experience of the laboratory are the core of the decision.

1. Fourteen years of deep cultivation in testing and standard mastery GTG Guangce Group has been deeply involved in the field of certification testing for 14 years, and has profound technical accumulation in the field of radio frequency (RF). We are familiar with the approval requirements of the State Radio Administration for the latest technologies (such as Wi-Fi 7, UWB, etc.), and can provide accurate compliance advice for listed companies and cross-border e-commerce companies.

2. ISO/IEC 17025 laboratory specification operation Our laboratory operates in strict accordance with international quality management system specifications and is equipped with advanced equipment such as high-precision vector signal analyzers and spectrum analyzers to ensure the authenticity and accuracy of test data. As a comprehensive certification and testing group, the pre-test data issued by us can significantly improve the passing rate of official sampling inspections.

3. Customer first and one-stop compliance service Adhering to the service concept of "customer first, teamwork, co-creation and win-win", we provide full-process services from technical pre-examination, prototype debugging, data compilation to certificate acquisition, providing Wireless module products are efficiently selling well across the country.

If you are planning the SRRC approval business of wireless modules, or have any questions about the latest 2.4 GHz/5GHz frequency band approval technical requirements, please contact the technical experts of GTG Guangce Group for in-depth consultation.